Bobbin.



Patented Nov. 26, [90L E. E. HENDRICK,

B 0 B B l N (Application filed Jan. 81, 1900.)

(l lo Model.)

5 Witnesses r 0 m m I Attys.

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UNITED STATES I PATENT OFFICE.

ELI E. HENDRICK, OF CARBONDALE, PENNSYLVANIA.

BOBBIN.

SPECIFICATION forming part of Letters Patent No. 687,562, dated November 26, 1901.

Application filed January 31, 1900. Serial No. 3,432. (No model.)

To all whom it may concern.-

Be it known that I, ELI E. HENDRICK, a citizen of the United States, residing at Carbondale, in the county of Lackawanna and State of Pennsylvania, (whose post-ofiice address is Carbondale, Lackawanna county, Pennsylvania,) have invented a certain new and useful Improvement in Bobbins, of which the following is a full, clear, and exact description.

My invention relates to various new and useful improvements in bobbins, and more particularly to improvements in the means for securing the disk-like heads in place to the cylindrical bodies or shells of hollow bobbins.

The object of the invention is to provide and produce a very simple bobbin for the purpose which will be efiective in use and which can be constructed at very low cost.

In carrying out my invention I employ the ordinary cylindrical shell or body, which may be provided with a central rib, if desired. This shell or body is equipped with two disklike heads, which are held together and in position upon the shell by means of a tubular bolt or tie, which extends concentrically within the shell and which is engaged with the heads of the bobbin in any suitable wayas, for example, by being turned over or beaded upon the heads, as is common in the art of working sheet metal. The said tubular bolt preferably carries one or more beads or ribs on its periphery, which engage with slots in the disk-like heads and which prevent said heads from turning with respect to the bolt. Preferably the shell or body is provided with a central rib, with which the head or beads on the tubular bolt engage, so that the latter will be prevented from turning with respect to said body.

In order that the invention may be better understood, attention is directed to the accompanying drawings, forming a part of this specification, and in which Figure 1 represents a sectional View of my improved bobbin; Fig. 2, an enlarged sectional view of a part of the tubular bolt, and Fig. 3 a cross-section on the line 3 3 of Fig. 2.

In all of the above views corresponding parts are represented by the same numerals of reference.

The body 1, which is made as thin as desired, is constructed, preferably, of wood. This body may be provided with a central internal rib 2, as is common.

3 3 represent the two disk-like heads. If desired, these heads may be provided with recesses 4, in which the ends of the body are seated.

5 represents a tubular bolt or lie, which extends through the usual openings in the heads 3 3 and is secured at its ends to said heads in any suitable wayas, for example, by being turned over or beaded at 6 6, as shown. Preferably the turned-over or beaded portion at each end of the tubular bolt is given a complete bend-as, for instance, by means of a die of common form. By formingamore or less closed head of this character the turning over thereof will result in the very rigid compression of the heads in position upon the body. If the metal of the bolts were simply flared over upon the heads, the latter would not be as firmly secured in place, since the flared portions would'spring slightly back away from the heads after the flaring pressure was released. The said tubular bolt is provided with one or more lon gitudinal beads or ridges '7, as shown in Fig. 3. These beads or ridges do not extend the entire length of the tubular bolt, but end,

'as shown in Fig. 1, at a point which is flush with the outer faces of the heads 4, whereby the ends 6 of the bolt may be beaded or turned over, as shown, to hold the parts in place. The passing of the beads or ridges 7 through each of the heads prevents said heads from turning with respect to the bolt. The central rib 2 is provided with recesses, through which the longitudinal bead or ridge 7 extends, so that said bolt will be prevented from turning with respect to the shell or body. In this way a very firm or rigid construction will be secured which can be constructed at a minimum cost.

Having now described my invention, what I claim as new, and desire to secure byLetters Patent, is as follows:

1. As a new article of manufacture, a hollow bobbin comprising a cylindrical shell, two heads secured in place to said shell, and a ta pered tubular bolt or tie connecting the heads together and arranged concentrically within the shell, the ends of said bolt or tie being turned over to form a complete 1301], substantially as set forth.

2. As a new article of manufacture, a hollow bobbin comprising a cylindrical shell, two heads secured in place to said shell, a tubular bolt or tie connecting said heads together and arranged concentrically within the shell, the ends of said bolt or tie being beaded or turned overupon said heads, and a longitudinal head or ridge carried by said bolt which engages with the heads to prevent the latter from turning with respect to the bolt.

3. As a new article of manufacture, a hollow bobbin comprising a cylindrical shell, two heads secured in place to said shell, a tubular bolt or tie connecting said heads/together and arranged concentrically within the shell, the

ends of said bolt or tie being beaded or turned over upon said heads, and diametrically-arranged beads or ridges carried by said bolt and engaging the heads to prevent the latter from turning with respect to the bolt.

t. As a new article of manufacture, a hollow bo bb1n comprising a cylindrical shell, two heads securedin place to said shell, a tubular bolt or tie connecting said heads together and arranged concentrically Within the shell, the

ends of said bolt or tie being beaded or turned over upon said heads, and a longitudinal bead or ridge carried by said bolt which engages With the heads to prevent thelatterfrom turning with respect to the bolt, the ends of said ridge or head terminating flush with the outer faces of the heads.

5. As a new article of manufacture, a hollow bobbin comprising a cylindrical shell having an internal rib, two heads secured in place to said shell, and a tubular bolt or tie conmeeting said heads together and arranged concentrically Within the-shell, the ends of said bolt or tie being beaded or turned over upon said heads, and said bolt or tie being provided with-a longitudinal bead or ridge which engages said heads and the internal rib to prevent the-heads from turning with respect to the bolt, and to prevent the bolt from turning with respect to the shell or body.

This specification signed and witnessed this 24th day of January, 1900.

ELI E. HQNDRIOK.

Witnesses:

LEWIS A. BAssETT, J. B. VANDERFORD. 

